Coin-operated induction-coil



(No Model.) 3 Sheets-Sheet 1.

P. G. WILLIAMS & A. W. ROOVERS. 00m OPERATED INDUCTION COIL.

No. 372,441. Patented Nov. 1, 1887.

Z al 4 9 41 60 Lays N. P'ETERS. Pholoinhognpher, Washingwn. 0. c.

3 Sheets-Sheet 2. P. G. WILLIAMS & A. W. ROOVERS.

COIN OPERATED INDUCTION COIL. No. 372,441. w Patented Nov. 1, 1887.

(No Model.)

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(No Model.) 3 Sheets-Sheet 3.

P. G. WILLIAMS & A. W. ROOVERS.

' GOIN OPERATED INDUCTION COIL.

No. 372,441 Patented Nov. 1, 1.887. T E94 M i g wanes N. PETR$ PhnlwLmwaphar. Washimon. D. C.

PERCY G. lVILLlAMS AND ALFRED. W. ROOVERS, OF BROOKLYN, NE\V YORK.

COIN-OPERATED INDUCTION-COIL.

SPECIFICATION forming part of Letters Patent No. 372,441, dated November 1, 1887.

Application filed May 6, 1887. Serial NO.Q3T,3QL (N0 model.)

To aZZ whom, it may concern:

Be it known that we, PnRcY G. WrLLIAMs and ALFRED XV. Roovnns, of Brooklyn, in the county of Kings and State of New York, have invented a certain new and useful Improvement in Coin Operated Induction Coils, of which the following is a specification.

Our improvement relates to machines in which a coin of a certain weight is employed to cause the machine to operate.

.Ve will describe our improvement in detail, and then point out the novel features in claims.

In the accompanying drawings, Figure 1 is a vertical section of a machine embodying our improvement. Fig. 2 is a horizontal section of thesame, taken on the plane of the line :0 m, Fig. 1. Fig. 3 isaside View, and Fig. 4 aplan View, partly in section, of a certain indicator and its eoacting parts with which the machine is provided. Fig. 5 is aview of an inductioncoil and certain parts employed therewith of modified form, the same being partly in section.

Similar letters of reference designate corresponding parts in all the figures.

A designates the case of the machine. It may be made of wood, and may be rectangular or of other desired shape.

Referring first to Figs. 1 and 2, B B designate handles or pulls constituting electrodes. They are arranged outside the case. At least one of these handles is hollow,and both are made of metal-as, for instance, brass. As shown, they are cylindrical. That one of these handles which we have illustrated in Fig. 1. as being hollow is provided with an enlarged portion, 1), adjacent to the case A. From this enlarged portion a hollow boss, I), extends inwardly and is adapted to enter a suitable aperture formed in a block, if, atlixed to the case. This boss is internally screwthreaded, and has connected to it one end of a metal drawrod, O, which rod has in turn a screw-threaded connection with a metal shell, O, surrounding an inductioncoil, O and in electrical contact therewith by a spring, 5, extending from one end of the secondary coil. By withdrawing the handle B the shell 0 of the induction coil may be drawn therefrom to a desired extent. \Vhen the handle B is released, the shell will be retracted to the position shown in Fig. 1 by a coil-spring, a, surrounding the draw-rod O, and abutting at one end against said shell and at the other against a block, 0, preferably of wood, affixed to the inner side of the case A. \Vhen the shell 0 is withdrawn, the induction-coil and its core O remain stationary, the latter being firmly secured, as shown, by friction in a suitsuch block for a distance and in close prox- 6 iinity to an adjustable vibrator of ordinary construction, (Z. A wire, (1, leads from the vibrator to the primary-coil of the inductioneoil, and a wire, (P, from the vibrator to a battery, D. A wire, (1*, leads from the batteryD to a contact-piece, d, affixed to an upright forming part of the case A, and a wire, d extends from another and similar contactpiece, (2, back to the primary coil of the induction-coil. tween the contact-pieces d d, the circuit just described is closed and the induction-coil becomes energized. The handle B is similar to the handle B as thus far described, and is pro vided with a similar draw-rod, C. d, leads from a spring, d secured to a ring of insulated material, (1, and hearing at one end against this draw-rod to the secondary coil of the induction-coil. \Vhen one grasps the handles B B a circuit is completed on the induction-coil, and the person grasping the handles will receive an electric shock.

In the induction-coil of modified form illustrated in Fig. 5 the shell O forms part of the draw-rod O, and, instead of surrounding the induction-coil, surrounds the core thereof, and may be slid freely to and fro on said core. It of course does not contact with the primary coil of the induetion coil. A spring, 8, connected with one end of the secondary coil, 5

bears against the draw-rod and shell 0 O. The balance of the circuit is completed in manner previously described.

It is one of the objects of our improvement to automatically cause the induction-coil to become energized by causing electrical connection to be established between the contact- Vhen connection is made be- 75 A wire, 80

Lil

- erture in the top thereof.

pieces at d upon the introduction of a coinof a certain weight and size into the case A. We will now describe this operation.

E designates an oblong shaft extending into the interior of the case through a suitable apported at its upper end by a flange,-e, extending over the adjacent surface of the case. Down this shaft a coin may be dropped. F designates a lever fulcrumed to a rib, e, on the interior of the case. One arm of this lever extends beneath the lower end of the shaft E, and is provided with a longitudinal slot, e. The other arm of the lever is weighted, as at eflwhereby the arm which extends beneath the shaft is maintained against the same. The slot 6 is sufficiently large to admit of a coin of a certain size passing through it withoutcanting the lever-say a coin of the denomination known as the nickel five-cent piece. If a coin of greater size and weight be dropped down the'shaft, it will not pass through the slot 0, and will cause the lever F to rock on its fulcrum, as shown in dotted outline, whereby the coin will be thrown out and will fall into a receptacle, G, beneath it. If the coin is too small, it will fall through the slot 6 and also through a slot, 6, formed in a plate, H, constituting one arm 'of a lever, H H, fulcrumed on the rib 6" below the lever F and into the receptacle G. If the coin be of the proper size and weight, it will pass through the slot 0 and will lodge in the slot (2 in the plate H. The portion H of the lever H H is made, as shown, in two sections, which sections are secured together by a flat spring, h, so that the outer of these sections may be deflected laterally. This outer section is pro vided with an enlarged portion, h. Normally the lever H H occupies the position shown in dotted lines in Fig. 1, below the contact-pieces d d,- but when a coin of proper weight has lodged in the slot 6" it is rocked into such position as to bring the enlarged portion h thereof into contact with the contact-pieces d d",- whereby circuit is closed on the induction-coil. The deflection of theouter section of the portion H of the lever H H enables the enlarged portion h to pass by the contactpieces d d, as may be necessary when a coin of greater weight than desired strikes the plate H after having been dropped down the shaft E. The circuit will in such case be only closed momentarily on the induetioncoil. Of course, if the contact pieces d" d were resilient, the portionH of the lever might be made rigid and a like result would be obtained. A spring, 71*, secured to the portion H of the le ver H H and at the other end to a projection on the rib 6, serves to retract the lever to its normal position after having been operated. Stops k limit the movements of the lever.

It will be seen from the foregoing that the induction-coil cannot be energized so as to cause an electric shock to be transmitted to a person grasping the handles B B unless a coin This shaft is supof proper weight and size be first dropped down the shaft E. 1

Assuming that a coin of proper weight and size has been dropped down the shaft and the induction-coil has become energized, as described, a person grasping the handles B B may withdraw them as far as desired and continue to receive an electric shock so long as the handles are grasped. lVhen the grasp is removed and the handles are retracted by the spring, as described, it is desirable to throw out the coin from the plate H. This is accomplished in the following manner:

I designates an electro-magnet, which may be secured to the interior of the ease of the machine in any suitable manner. 1 designates an armature therefor. This armature constitutes a lever fulcru med on the case. Its short arm extends in close proximity to the magnet. Its long arm has, as shown, an enlarged portion, 71, constituting a striker or hammer, which extends beneath the plate H. When the magnetI is energized and thearmature attracted, the hammeri will be caused to strike a coin in the plate H and throw it out, whereupon it will fall into the receptacle G. When this has occurred, the portion H of the lever H H will be withdrawn from contact with the contact'pieccs (1* d and circuit will be broken and the induction-coil de-energ-ized. It cannot be again energized until another coin of suitable size and weight has been dropped onto the plate H.

We cause the operation of the elcctro-magnet I in the following manner:

J designates a collar surrounding the drawrod 0 and fitting quite snugly thereon. One side of this collar is insulated by a ring of india-rubber or other suitable insulating material, j. Springsj, secured at one of their ends to the insulated portion] of the collar and bearing at their other ends against the draw-rod O, tend to center the collar.

J designates a sliding contact-piece sliding in suitable guides, j secured to the case and the block 0. This contact-piece is provided with two downwardly and outwardly extending projections, j j. One of these is upon one side of the collar Jand the other upon the other side of the same.

When the draw-rod (J is withdrawn, it carries with it the collar J, the insulated portion j of which will come in contact with theprojection j on the contact-piece J and move the latter until itsprojecting end is moved into a socket formed in a metal bloek,j, inset, as shown, in the block b. If a further outward movement of the draw-rod G then occurs, it will be drawn throughthe collar J,the latter remainingstationary. If new the grasp on the handles B Bis removed and thedrawrod 0 is retracted by the spring, the collar will be moved with it until its metal portion comes in contact with the projection j" on the sliding contact-piece. When the collar J is thus brought in contact with the projection j,

ICO

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. thereof.

the eontaet-piece J remains for an instant in contact with the metal block 9'. A circuit is then formed on the electromagnet I through a wire, j leading from the block j to a battery, J", a wire, j, leading from such battery, a contact-piece, 0, thence through an insulated metal piece, 0 secured to the spring 0, to a contact-piece, 0, thence by a wire, j", to the electro-maguet I, a wire, j, leading from the electro maguet to a metal ring, J inset in the block 0 and surrounding the draw-rod O in close contact there-with, the draw rod, 0 the collar J, and the contact-piece J. The circuit thus closed is of sufficient duration only to energize the electro-inagnctl and cause the operation of the hammer i.

We sometimes wish to cause the induction coil 0 to be de-energized without the handles B B and draw-rod 0 being necessarily retracted to their full extent. This may occur if the grasp on the handles be relaxed without necessarily being wholly loosened. To accomplish this result we provide the handle B with a longitudinal slot, f. As shown, this slot is upon the upper side of the handle B. Into the slot extends a piece of metal, f, constituting a push-piece, and here shown as bowshaped. A portion of this push-piece extends normally above the adjacent surface of the handle. Near one end this piece of metal f is affixed to a flat spring, f'", which latter is in turn secured to the handle B, upon the inner side of the latter. \Vhen the handle B is grasped, the piece of metal j" will be pressed inward, and when the grasp is removed the springf will return to its normal position. The other or free end of the metal piece f is provided upon one side-as here shown, the under side-with a piece of india-ruhber or other suitable insulating material, f. This end of the metal piece extends between two projections, 99, on a metal slidingcontactpiece, L, arranged vertically, as shown, and adapted to be moved to and fro in gnidrs y, secured to a plate, 9, aflixed to the enlarged portion Z) of the handle B upon the interior The contact-piece tits snugly in the guides 9 Then the metal piece f is de pressed, the insulated piece f thereon contacts with the projection g on the contact-piece L and moves the latter downwardly until its lower end is moved into a suitable recess formed in a piece of metal, g", secured to a piece of insulating material, 9", in the lower part ofthe enlarged portion b of the handle. If the grasp upon the handle B be relaxed sufficiently to allow the metal piece fto spring upwardly, the metallic portion of the piecef is brought in contact with thcprojection g on the contact-piece. hen this contact is made, the contact-piece L will remain for an instant in contact with the metal piece 9 before being moved out of such contact by the continued upward movement of the metal piece f. A circuit is thus closed on the electro-magnet I, which includes a wire, 9, extending from the piece g to the battery J, the wire j c011- tact-piece 0, spring 0, contact-piece 0', wire jflthc wire the ring Jithe draw-rod O, the handle 13, the metal piece f, and the sliding contact-piece L. When this circuit is closed, the hammerz' will be operated to throw the coin out of the plate H and the induction-coil will be de energized.

WVhen the handles B B occupy a normal position,or that shown in Fig. 1', we desire to prevent the energizing of the electro-magnet I, except when a coin of proper size and weight has been dropped down the shaft E To accomplish this we provide the curved spring 0, secured near one end upon the inside of the shaft E,and having its free end extending through a longitudinal slot in the shaft. A coin of proper size, passing down the sh aft, forces the spring 0 outwardly through the slot and into such position that its free end will engage a tooth on an armature, R, of an eleetro-magnet, R, and the metal piece 0" will be brought in contact with the contactpieces 0 0. A wire, leads from the magnet R to the battery J. \Vhen circuit is closed on the magnet I in either of the ways just previously described, the armature Iwill be brought in contact with a contact-piece, t, connected by a wire, with the spring 0. Circuit is thereby closed on the magnet It, whereby the armature R is attracted and the spring 0 released. If, however, the handles B B be withdrawn or the push-piecef be operated without the spring 0 having first been engaged with the armature R by a passing coin, the magnet I will not be energized, because the circuit will rcmain open.

\Ve employ an indicator, M, for the purpose of indicating by arbitrary numbers the strength of an electric current which a person operating the machine can take. This indicator is allixed to the exterior of the case A, and comprises a cylindric case in which is arranged a dial-plate, Z, upon which are delineated certain numbers and marks in a circle. A pointer, Z, extends over the numbers and marks, and is adapted to transcribe a circle about the dial. The pointer is mounted on an arbor, Z, journalcd in a suitable bearing in the side of the case A. Upon the portion of the arbor which extends inside the case is mounted a pinion, Z.

It is well known in a certain class of electric machines for (ilGCUOlllGdlCZll treatment that the farther the core of the induction-coil is withdrawn the stronger will be the shock experienced by the person being operated upon. This same result is attained in our machine by moving the shell 0 more or less off from the induction-coil by withdrawing the handle B. The shell 0, as shown in Figs. 3 and 4, is provided upon one side with a rack, Z, wit-h which the pinion Z engages. As the shell is moved along on the induction-coil the pinion is rotated and the pointer moved over the numbers and marks.

It'will be seen that by our improvement we produce an electric machine capable of ad ministering an electric shock to a person, but which cannot be rendered operative unless a coin of certain weight and size has been first dropped into the machine. In this machine, also, the electric current which the personbeing operated upon receives may be regulated entirely by himself by simply withdrawing or pushing in the electrodes through which he receives the current.

What we claim as our invention, and dcshe to secure by Letters Patent, is-

the same, a longitudinally-movable part in electrical contact with the induction-coil, two

longitudinally-movable electrodes outside the case, one of said electrodes being electrically and rigidly connected to said longitudinallymovable part, and a spring for moving said last-mentioned electrode and longitudinallymovable part in one direction, substantially as specified.

3. The combination, with a case, of an induction-coil, an electric battery for energizing thesame, contact-pieces, a normally-open electric circuit comprising the primary coil of the induction-coil, the battery, and said contactpieces, anda rocking lever adapted to be rocked into contact with said contact-pieces and close the said circuit upon a coin of desired weight and size lodging upon said lever until said coin is removed, substantially as specified.

4. The combination, with a case, of an inductioncoii, an electric battery for energizing the same, contact-pieces, a normally-open electric circuit comprising the primary coil of the induction coil, the battery, and said contactpieces, and a rocking lever adapted to be rocked into contact with said contact-pieces and-close said circuit upon a coin of certain size and weight lodging upon said lever until said'coin is removed, and to be moved past said contact-pieces upon a coin of greater weight than desired falling upon the lever, substantially as specified.

5. The combination, with a case, of an induction-coil, an electric'battery for energizing the same, an electrical circuit, alever adapted to be moved by a coin of certain weight to close said circuitand energize the inductioncoil, an electro-magnet, an armature for the same comprising a striker, a battery for energizing the electro-magnet, a circuit therefor,

a movable part in contact with the secondary circuit of the induction-coil, an electrode outside the case, anda connection between the electrode and said movable part, which when moved in one direction will cause the circuit on the'electro-magnet to be closed, and thereby cause said striker to strike the coin, substantially as specified.

6. The combination, with a case, of an i11 duction-coil, an electric battery for energizing the same, an electric circuit comprising the primary coil of the induction-coil, a lever adapted to be moved by a coin .of certain weight to close said circuit and energize the induction-coil, an electro-magnet, an armature for the same comprising a striker, a battery for energizing the electro-magnet, a circuit therefor, an electrode outside the case, a press-piece connected with said electrode, and a switch adapted to be moved by said press-piece to close said last-named circuit, energize the electromagnet, and cause said striker tostrike the coin, substantially as specified.

7. The combination, with a case, of an induction-coil, an electric battery for energizing the same, an electrical circuit comprising the primary coil of the inductioncoil, a' lever adapted to be moved by a coin of certain 'weight to close said circuit and energize the induction-coil, an electro magnet, an armature for the same comprising a striker, a battery for energizing the electro-magnet, a circuit therefor, a movable part in contact with the secondary of the induction-coil, an electrode outside the case, and a connection between the electrode and said movable part, which when moved in one direction will cause the circuit on the electro-magnet to be closed, a contact piece adjacent to said armature, another e1ectro-magnet, an armature therefor comprising a catch, a shaft down which a coin is to be dropped, and a spring extending into said shat't, adapted to be pressed outward byapassing coin into a position where it will be secured by said catch, allbeingarranged and combined substantially as described, whereby when the first-named electromagnet is energized and its armature. attracted circuit will be closed on the secondnamed electro-magnet and said spring be released from the catch.

8. The combination, with a case, of an induction-coil, an electric battery for energizing the same, an electric circuit comprising the primary coil of the induction coil, a lever adapted to be moved by a coin of certain weight to close said circuit and energize the induction-coil, an electro-magnet, an armature for the same comprising a striker, a battery for energizing the electro-magnet, a circuit therefor, an electrode outside the case, a press-piece connected with said electrode and switch, adapted to be moved by said press-piece to close said last-named circuit and energize the electro-magnet, a circuit therefor, a contact-piece adjacent to said armature, another electromagnet, an armature therefor comprising a catch ICS pointer is mounted, a pinion on said arbor, an induction-coil, a longitudinally-1n0vab1e shell on said inductioncoi], provided with a rack engaging said pinion, and a longitudinallyinovable handle upon the outside of the case, directly connected with the shell and in line with the induction-coil, for moving said shell 20 in one direction, substantially as specified.

PERCY G. WILLIAMS. ALFRED W. ROOVERS. \Vitnesses:

D. H. DRIsooLL, M. J. RoAoH. 

